ETSI TS 129 531 V16.3.0 (2020-07)

5G; 5G System; Network Slice Selection Services; Stage 3 (3GPP TS 29.531 version 16.3.0 Release 16)

RTS/TSGC-0429531vg30

General Information

• Status: Not Published
• Technical Committee: 3GPP CT 4 - MAP/CAMEL/GTP/BCH/SS/TrFO/IMS/GUP/WLAN (formely CN4)
• Current Stage: 12 - Completion
• Completion Date: 29-Jul-2020

Standards Content (Sample)

ETSI TS 129 531 V16.3.0 (2020-07)






TECHNICAL SPECIFICATION
5G;
5G System;
Network Slice Selection Services;
Stage 3
(3GPP TS 29.531 version 16.3.0 Release 16)

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3GPP TS 29.531 version 16.3.0 Release 16 1 ETSI TS 129 531 V16.3.0 (2020-07)



Reference
RTS/TSGC-0429531vg30
Keywords
5G
ETSI
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3GPP TS 29.531 version 16.3.0 Release 16 2 ETSI TS 129 531 V16.3.0 (2020-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
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Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
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Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities. These shall be
interpreted as being references to the corresponding ETSI deliverables.
The cross reference between 3GPP and ETSI identities can be found under http://webapp.etsi.org/key/queryform.asp.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 29.531 version 16.3.0 Release 16 3 ETSI TS 129 531 V16.3.0 (2020-07)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 8
2 References . 8
3 Definitions and abbreviations . 9
3.1 Definitions . 9
3.2 Abbreviations . 9
4 Overview . 9
4.1 Introduction . 9
5 Services offered by the NSSF . 9
5.1 Introduction . 9
5.2 Nnssf_NSSelection Service . 10
5.2.1 Service Description . 10
5.2.2 Service Operations . 10
5.2.2.1 Introduction . 10
5.2.2.2 GET . 10
5.2.2.2.1 General . 10
5.2.2.2.2 Get service operation of Nnssf_NSSelection service . 11
5.2.2.2.3 Get service operation of Nnssf_NSSelection service during the PDU session establishment . 12
5.2.2.2.4 Get service operation of Nnssf_NSSelection service during UE configuration update
procedure . 12
5.3 Nnssf_NSSAIAvailability Service . 13
5.3.1 Service Description . 13
5.3.2 Service Operations . 13
5.3.2.1 Introduction . 13
5.3.2.2 Update Service Operation . 14
5.3.2.2.1 General . 14
5.3.2.3 Subscribe Service Operation . 14
5.3.2.3.1 General . 14
5.3.2.4 Unsubscribe Service Operation . 15
5.3.2.4.1 General . 15
5.3.2.5 Notify Service Operation . 16
5.3.2.5.1 General . 16
5.3.2.6 Delete Service Operation . 16
5.3.2.6.1 General . 16
5.3.2.7 Options Service Operation . 16
5.3.2.7.1 General . 16
6 API Definitions . 17
6.1 Nnssf_NSSelection Service API . 17
6.1.1 API URI . 17
6.1.2 Usage of HTTP . 17
6.1.2.1 General . 17
6.1.2.2 HTTP standard headers . 18
6.1.2.2.1 General . 18
6.1.2.2.2 Content type . 18
6.1.2.3.1 General . 18
6.1.3 Resources . 18
6.1.3.1 Overview . 18
6.1.3.2 Resource: Network Slice Information . 19
6.1.3.2.1 Description . 19
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3GPP TS 29.531 version 16.3.0 Release 16 4 ETSI TS 129 531 V16.3.0 (2020-07)
6.1.3.2.2 Resource Definition . 19
6.1.3.2.3 Resource Standard Methods . 19
6.1.3.2.3.1 GET. 19
6.1.3.2.4 Resource Custom Operations . 20
6.1.4 Custom Operations without associated resources . 20
6.1.5 Notifications . 20
6.1.6 Data Model . 20
6.1.6.1 General . 20
6.1.6.2 Structured data types . 21
6.1.6.2.1 Introduction . 21
6.1.6.2.2 Type: AuthorizedNetworkSliceInfo . 22
6.1.6.2.3 Type: SubscribedSnssai . 24
6.1.6.2.4 Void . 24
6.1.6.2.5 Type: AllowedSnssai . 24
6.1.6.2.6 Type: AllowedNssai . 24
6.1.6.2.7 Type: NsiInformation . 25
6.1.6.2.8 Type: MappingOfSnssai . 25
6.1.6.2.9 Void . 26
6.1.6.2.10 Type: SliceInfoForRegistration . 26
6.1.6.2.11 Type: SliceInfoForPDUSession . 28
6.1.6.2.12 Type: ConfiguredSnssai . 28
6.1.6.2.13 Type: SliceInfoForUEConfigurationUpdate. 29
6.1.6.3 Simple data types and enumerations . 29
6.1.6.3.1 Introduction . 29
6.1.6.3.2 Simple data types . 29
6.1.6.3.3 Enumeration: RoamingIndication . 29
6.1.6.4 Binary data . 30
6.1.7 Error Handling . 30
6.1.7.1 General . 30
6.1.7.2 Protocol Errors . 30
6.1.7.3 Application Errors . 30
6.1.8 Feature negotiation . 30
6.1.9 Security . 31
6.2 Nnssf_NSSAIAvailability Service API . 31
6.2.1 API URI . 31
6.2.2 Usage of HTTP . 31
6.2.2.1 General . 31
6.2.2.2 HTTP standard headers . 31
6.2.2.2.1 General . 31
6.2.2.2.2 Content type . 31
6.2.2.2.3 Accept-Encoding . 32
6.2.2.3 HTTP custom headers . 32
6.2.2.3.1 General . 32
6.2.3 Resources . 32
6.2.3.1 Overview . 32
6.2.3.2 Resource: NSSAI Availability Document . 33
6.2.3.2.1 Description . 33
6.2.3.2.2 Resource Definition . 33
6.2.3.2.3 Resource Standard Methods . 33
6.2.3.2.3.1 PUT . 33
6.2.3.2.3.2 PATCH . 34
6.2.3.2.3.3 DELETE . 35
6.2.3.3 Resource: NSSAI Availability Notification Subscriptions Collection . 36
6.2.3.3.1 Description . 36
6.2.3.3.2 Resource Definition . 36
6.2.3.3.3 Resource Standard Methods . 36
6.2.3.3.3.1 POST. 36
6.2.3.4 Resource: Individual NSSAI Availability Notification Subscriptions . 37
6.2.3.4.1 Description . 37
6.2.3.4.2 Resource Definition . 37
6.2.3.4.3 Resource Standard Methods . 37
6.2.3.4.3.1 DELETE . 37
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3GPP TS 29.531 version 16.3.0 Release 16 5 ETSI TS 129 531 V16.3.0 (2020-07)
6.2.3.5 Resource: NSSAI Availability Store . 38
6.2.3.5.1 Description . 38
6.2.3.5.2 Resource Definition . 38
6.2.3.5.3 Resource Standard Methods . 38
6.2.3.5.3.1 OPTIONS . 38
6.2.4 Custom Operations without associated resources . 39
6.2.5 Notifications . 39
6.2.5.1 General . 39
6.2.5.2 NSSAI Availability Notification . 39
6.2.5.2.1 Description . 39
6.2.5.2.2 Notification Definition . 39
6.2.5.2.3 Notification Standard Methods . 40
6.2.5.2.3.1 POST. 40
6.2.6 Data Model . 40
6.2.6.1 General . 40
6.2.6.2 Structured data types . 41
6.2.6.2.1 Introduction . 41
6.2.6.2.2 Type: NssaiAvailabilityInfo . 41
6.2.6.2.3 Type: SupportedNssaiAvailabilityData . 42
6.2.6.2.4 Type: AuthorizedNssaiAvailabilityData. 42
6.2.6.2.5 Type: RestrictedSnssai . 43
6.2.6.2.6 Type: AuthorizedNssaiAvailabilityInfo . 43
6.2.6.2.7 Type: PatchDocument . 43
6.2.6.2.8 Type: NssfEventSubscriptionCreateData . 44
6.2.6.2.9 Type: NssfEventSubscriptionCreatedData . 44
6.2.6.2.10 Type: NssfEventNotification . 45
6.2.6.3 Simple data types and enumerations . 45
6.2.6.3.1 Introduction . 45
6.2.6.3.2 Simple data types . 45
6.2.6.3.3 Enumeration: NssfEventType . 45
6.2.6.4 Binary data . 45
6.2.7 Error Handling . 46
6.2.7.1 General . 46
6.2.7.2 Protocol Errors . 46
6.2.7.3 Application Errors . 46
6.2.8 Feature negotiation . 46
6.2.9 Security . 47
Annex A (normative): OpenAPI specification . 48
A.1 General . 48
A.2 Nnssf_NSSelection API . 48
A.3 Nnssf_NSSAIAvailability API . 52
Annex B (informative): Change history . 60
History . 63

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3GPP TS 29.531 version 16.3.0 Release 16 6 ETSI TS 129 531 V16.3.0 (2020-07
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